re: Microsoft's XP Eulogy: Not Everyone's Listening
I'm assuming you're talking about upgrading from XP to 8 on the same hardware? If so, it's possible -- but most of the people I've asked about it don't necessarily recommend it. (I'm also sure there are plenty of InformationWeek readers who can offer sharper opinions on this, so hopefully they'll chime in.) One reason is that if you're running XP there's a good chance the hardware is at least several years old, and more likely 5+ years old, like the ancient XP desktop still cranking along in my office. Even if it meets the minimum requirements to run Windows 8, it probably won't deliver an optimal experience. Another reason is touch: Windows 8's UI was developed with touch in mind, even though it can be used without a touchscreen. Just my own viewpoint, but I don't see the value in running Windows 8 on a non-touch device. I'd rather have Windows 7 in that case.
That's one of the XP hang-ups for some businesses -- an XP upgrade means a hardware upgrade, too, and that can get expensive in a hurry. As Mark532010 noted above, that's often a deal-breaker for the folks that control the corporate purse strings, especially if the existing hardware/software still gets the job done.